Photographic camera



A. G. PICKARD AND F. SLINGER.

PHOTOGRAPHIC CAMERA. ArPucATloN HLEn1uLY1s,1918.

Patented Nov. 1, 1921.y

' a SHEETS-'SHEET 1. l

A. G. PICKARD AND F. SLINGER.

PHOTOGRAPHIC CAMERA.

APPLICATION HLED 1uLYl6,1918.

1,395,869, Patented Nov. 1, 192.1.

3 SHEETS-SHEET 3.

UNITED STATES FATENT ASSIGN ORS TO THORNTON -PICKARD MANUFACTURINGCOMPANY LIMITED,

0F ALTRINCHAM, CHESTER, ENGLAND.

PHOTOGRAPHIC CAMERA.

Application led July 16,

To al@ whom t may concern Be 1t known that we, ARTHUR GRAY Prox- 'ARDand FRANK SLINGER, both British subjects, residing both atAltrinchani,county of Chester, England, have invented certain new anduseful Improvements in Photographic Cameras, of which the following is aspeciiication.

This invention relates to photographic cameras capable of being focusedor sighted in the same manner as a gun.

It consists essentially in constructing the camera inappearance orexternal contourA as nearly as practical the same as a machine guninclosing the operating mechanism with in the same and such as torequire all the movements of, or movements similar to, machine gunpractice to obtain a satisfactory photograph whereby the use or practicewith the camera will be equivalent to gun drill or practice.

In this way photographic shots may be made and pictures taken which willrecord the accuracy, aim` and the result of Shoo"- ing while at the sametime giving practice with the gun.

The invention is primarily intended to represent machine guns of theLewis type but may be made to represent other types of machine guns.

The invention will be fully described with reference to the accompanyingdrawings, which as an example show the invention as representing amachine gun of the Lewis type.

Figure l is a side elevation of the camera.

Fig. 2 is a plan.

Fig. 3 is a longitudinal Section.

Fig. 4i is a sectional plan.

Fig. 5 is a transverse section on line 5 5, Figs. 3 and 4.

Fig. 6 is a transverse section Fig. 3.

Fig. 7 is a transverse section on line 7 7, Figs. 3 and 4.

Fig. 8 is a transverse section on line 8 8, Fig. 3.

Fig. 9 is a detail plan of arm ating the shutter of the lens G.

The camera is constructed externally with a barrel A, a stock B, atrigger C, a trigger handle D, a. handleN E to oscillate the gun, a partF, representing the ammunition magaon line 6 6,

g for oper- Specication of Letters Patent.

Patented Nev. 1, 192i.

1918. Serial No. 245,180.

zine of a firearm and a pillar 7 to receive the part F, also swivel andsights.

The barrel A forms the optical part of the camera and in it are placedthe lenses G with a between lens shutter of iris or other suitableconstruction. To the rear of the barrel a chamber H of rectangular orother shape is formed to hold the sensitized photographic medium,preferabiy in the form of a photographic film K with means for windingthe film forward after each exposure, and a second chamber with a springbarrel L or other motor mechanism which can be utilized to act-nate thechanging mechanism for the film and other parts of the apparatus.

A screen It with circles, cross lines or other marking is inserted inthe chamber H in front of the film K the markings on which will bereproduced on the photograph to indicate the degree of the accuracy of'the shooting.

The spring motor L is connected with the winding spool of the film K bya train of gears 7a: and is wound up by a chain K around the peripheryof the barrel one end of which is attached to a sliding bolt M.

The sliding bolt M with knob or handle m is fitted to one side of thestock B and is moved in one direction by the spring motor L and in theother direction against the force of the spring by hand to take theplace of or represent the lever for setting the trigger of the reai gun.The spring in the barrel L is wound up as the sliding bolt M is movedbackward and at the saine time the. rotation of the barrel moves forwardthe film for the nextexpcsure. and the spring in the barrel L serves tomove the slide bolt M forward when released the trigger.

To the slide bolt M an arm g is aiiixed to open and close the shutter ofthe lens G at or near the end of its forward traverse. The shutter isconnected by a wire or cord g with a rocking lever g2 placed in the pathof the arm g which as it passes strikes the lever and operates theshutter to open and close it.

The slide bolt M is held in its rear position by a catch c engaging anotch therein and is released by a trigger C.

Adjacent to the pillar f for the part F Y the same time the rod vmit theexposure to be taken,

representing the ammunition magazine of a fire-arm, a bell-crank lever Nis pivoted with a pin or rod n projecting upward Which When the magazineis placed'in'position is pressed down to roclr the lever. The lever Nabiits against the end of a rod or striker or punch P which is projectedfor- Ward to perforate or otherwise mark the film K to indicate. thereonthat the operation Voff placing the part representing the ammunitionmagazine of a lire-arm in posi- 'tion has been fully carried out beforepulling the triggerto operate the shutter.

closing again Valmost instantaneously.

As applied to other machine gunsthe external contour of the gun Will befollowed and the internal arrangementsivill be similar tothose abovedescribed consistently7 With the operation of changing the film oi'plate and ina-king the Iexposure agreeing with the operations commonlyused in manipulating the gun in firing practice, lthe part representingSaid receiver.

the ammunition magazine of a {ire-arm, such asa dislr or drum or a bandto representa cartridge belt, being applied, with a corresponding leverand devicel to mark or perforate the film.

Vhat We claim as Vour invention and de- Y sire to protect by LettersPatenty is :M

l. A photographic camera: having an eX- terior contour similar to thatof a machine gun and embodying a receiver for a part representing themagazine of a machine gun, a barrel, a iens and shutter contained in thebarrel, a spring motor a Slide-bolt to Wind the motor and to operate theshutter, a trigger and cooperative catch to hold and release theslide-bolt, anda de` vice operative by the placingof themagazine-representing part on its receiver, to mark the ilm. Y Y Q ln aphotographic camera having the general contour of a irearm and adaptedto be used for recording operations such as shooting, the combinationWitha lens', means for supporting a sensitive me'dium` for Veirposure bythe lens, and a'recei-ver for a Vpartrepresenting the magazine of arire-arm of adevicel operative V,automatically Vto mark or indicateonthe sensitive mediuniivh'en a part representing the ammunition magazineof afirearm has been properly applied to `lntestimony whereof We havehereunto set our handsin presence or two subscribing` Witnesses, this"12th Clav ofliine', i918.

' ARTHUR GRAYYPCKARB.

FRANK SLNGER; Witnesses: y v 'i J. V@Winni OBizreiv, HARRY BABNFATHER.

to operate the ilm,V

